NHTSA Campaign Id 77V055000; Date: Apr. 19, 1977
1975 Mercedes Benz L1113; 1976 Mercedes Benz L1113; 1975 Mercedes Benz L1116; 1976 Mercedes Benz L1116
Component: Service Brakes, Hydraulic:power Assist
Manufactured by: Mercedes-benz Usa, Inc.
Affected Units:: 449
An air leak could develop through the piston shaft seal ring which seals the inside of the brake booster from the atmosphere. This could result in a reduction in brake booster assist, necessitating increased brake pedal pressure.
Dealer will replace the defective seal with an improved version at no charge to owner.
Vehicle description: trucks. System: service brakes; piston shaft seal. Consequences of defect: brake malfunction, requiring an increase in brake pedalpressure, could cause loss of vehicle control and an accident.
Date Owners notified by Manufacturer: Apr 15, 1977
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